![antschilt519](/avatars/42226.jpg)
antschilt519
16.07.2019 •
Mathematics
Which of the following completes the square for the equation below? x^2+18x=0
Solved
Show answers
More tips
- L Leisure and Entertainment When will Maslenitsa start?...
- F Food and Cooking Discovering the Mysterious Fruit of Feijoa...
- B Business and Finance How to Open an Online Store? A Detailed Guide for Beginners...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
Ответ:
X²=-18x
By looking at this, I can findn what x is. Since one side is a number times itself equals -18 times something else. X has to be negative 18. Let's try it.
(-18)²=-18×-18
324=324
Now let's put it into the equation.
(-18)²+18(-18)=0
324-324=0
0=0
This is the same thing, since being squared is the number multiplied by itself.
So, x equals -18.
Ответ:
A) m∠3 + m∠4 = 180
Step-by-step explanation:
Both angles make a straight line which has an angle of 180.